Billion Electric Co. Ltd. BIL-SIM7100C Benutzerhandbuch
Smart Machine Smart Decision
SIM7100C_User Manual_V1.01
2015-09-19
47
KBR4
34
KBR4
GPIO6
KBR3
35
KBR3
GPIO7
KBR2
30
KBR2
GPIO8
KBR1
33
KBR1
GPIO9
KBR0
29
KBR0
GPIO10
KBC4
36
KBC4
GPIO11
KBC3
32
KBC3
GPIO12
KBC2
31
KBC2
GPIO13
KBC1
27
KBC1
GPIO14
KBC0
28
KBC0
GPIO15
Note: Refer to document [23] for detailed information of Keypad Application Note.
3.10 SPI Interface
SPI interface of SIM7100C is master only. It provides a duplex, synchronous, serial communication link
with peripheral devices. Its operation voltage is 1.8V, with clock rates up to 26 MHz.
with peripheral devices. Its operation voltage is 1.8V, with clock rates up to 26 MHz.
3.10.1 SPI Pin Description
Table 29: SPI Pin description
Table 30: SPI Electronic characteristic
Symbol
Parameter
Min
Typ
Max
Unit
V
IH
High-level input voltage
1.26
1.8
2.1
V
V
IL
Low-level input voltage
-0.3
0
0.63
V
V
OH
High-level output voltage
1.35
-
1.8
V
V
OL
Low-level output voltage
0
0
0.45
V
Pin name
Pin No.
Function
SPI_CS
9
SPI chip-select; not mandatory in a point-to-point connection
SPI_MISO
7
SPI master in/slave out data
SPI_CLK
6
SPI clock
SPI_MOSI
8
SPI master out/slave in data